The invention provides an automobile, an automobile control system, and an electronic controller. The electronic controller comprises a sensing signal reception circuit for converting sensing signals from the rear part of a body of the automobile to first digital signals; a microprocessor for operation processing of second digital signals, third digital signals, and the first digital signals according to a preset program in order to generate fourth digital signals; a control circuit for detecting the self work state and the work state of an electrical appliance device positioned at the rear part of the body of the automobile in order to generate the third digital signals and converting the fourth digital signals to control signals; and a transceiver for receiving data from a vehicle network in order to generate the second digital signals. According to the electronic controller, the control burden of an automobile BCM can be reduced, and the control stability and the control efficiency of the overall control system can be improved.